Means for heating baths.



Patented May 29, l|900.

c. WALTER. MEANS FR HEATING BATHS.

(Application led Aug* 20, 1898.) (llo Model.)

UNITED STATES PATENT EEICE.

CARL VALTER, OFABERLIN, GERMANY.

MEANS FOR HEATING BATHS.

SPECIFICATION forming part of Letters raient No. 650,439, dated May 29, 1900.

Application iiled August 20, 1898.

To all whom, it may concern.'

Be it known -that I, CARL WALTER, a subject of the King of Prussia, German Emperor, residing at Berlin, in the Kingdom of Prussia, Germany, have invented certain new and useful Improvements in Means for Heating Baths, of which the following is a speciiication.

The subject of this invention consists of a bath which is heated from below. Seat-baths in the hollow of which a cylinder containing glowing coal is placed for the purpose of heating the water are already known. The object of this invention has, however, nothing common with these baths, as it concerns the use of an open re for heating each bath no matter of what kind, which effects a considerable economy in first costs, as also in the use.

In the accompanying drawings, Figure lis a plan of a gas heating device; Fig. 2, a section through a bath provided with the gas heating device. Fig. 3 is a section of a bath provided with a coal-tire grate.

In Figs. l and 2 the bath A is shown, which is supported by the framework B, which is provided with wheels, so that it can be easily moved. .In this framework B the gas-tube C, provided with rows of gas-outlets, is arranged, which is wound according to desire and is flat on the upper side. This upper side is covered with a layer D of asbestos for the purpose of preventing the tubes which become heated from the gas-flames from coming into contact with the bottom of the bath. The border of the bath is bent over and extends almost down to the floor. The object of this is to retain the hot air escaping from underneath the bath to make use of same for the purpose of laterally heating the water. To prevent a too-extreme heating of this bentover border, it is provided with an under plate, and in the space formed by this under platey and the bent-over border ashes are contained. The under plate reaches up to the water-level.

The bath shown in Fig. 3 is heated by means seria No. 689,089. (No man.)

of a coal fire. The arrangement of the bath is the same as in the first form of the invention, with the difference that instead of the gas-tube C a grate Gis used. This grate consists of two compartments G and G2, connected with each other by means of rails. G' is the open part, in which the grate is arranged on rails as a carriage. The re is made upon this grate and warms the bottom of the bath, the gases passing into the hollow space formed by the bent-over border, so that the water is also heated from the side. In this form, as also in the first form of the invention, the gases and vapor can escape through tubes e. When the water has attained the desired temperature, the grate is rolled from the part G'into the part G2, which is connected in some suitable manner to the chimney, through which the heat can escape. The part G2 is provided with asbestos walls, one of which can be opened for the purpose of reaching the iire. To enable the introduction of the iire, this removable wall is pulled forward. When the wall is pushedbaek into position, the iire is contained in a completelyclosed compartment, the only opening of which is that leading to the chimney.

What I claim, and desire to secure by Letters Patent of the United States, is

The combination of a bath-tub and means for applying heat directlyto the walls thereof, the edges ofk the tub being bent over to form side chambers around the tub into which the heat may rise, an under plate, the same being arranged beneath the bent-over edges forming a chamber with the latter, and anonheat-conducting material located in the latter chamber whereby the exposed surfaces of the tub will not become excessively heated, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two witnesses. A CARL WALTER. Witnesses:

C. H. DAY, CARL ALBRECHT. 

